Added loyalty fields

Author: beratallahverdi

src/main/java/io/craftgate/model/LoyaltyData.java

@@ -3,9 +3,19 @@
 import lombok.Builder;
 import lombok.Data;
 
+import java.math.BigDecimal;
+
 @Data
 @Builder
 public class LoyaltyData {
+
     private Integer maxPostponingPaymentCount;
-    private String unitType;
+    private Integer minPostponingPaymentCount;
+    private LoyaltyUnitType unitType;
+    private Boolean deferredPaymentEligible;
+    private BigDecimal minAmount;
+    private BigDecimal maxAmount;
+    private String dueDateShiftDirection;
+    private BigDecimal singleTotalDueDateDayCount;
+    private String code;
 }

src/main/java/io/craftgate/model/LoyaltyParams.java

@@ -6,5 +6,7 @@
 @Data
 @Builder
 public class LoyaltyParams {
+
     private Integer postponingPaymentCount;
+    private String code;
 }

src/main/java/io/craftgate/model/LoyaltyUnitType.java

@@ -0,0 +1,6 @@
+package io.craftgate.model;
+
+public enum LoyaltyUnitType {
+    MONTH,
+    DAY
+}